Analyze Git Repository for Cleanup

Perform a comprehensive analysis of the git repository to identify branches and worktrees that can be cleaned up. This is a READ-ONLY analysis - no deletions will be performed.

Step 1: Analyze Local Branches with [gone] Status

Run the following command to identify branches whose remote tracking branches no longer exist:

git branch -v

Look for branches marked with [gone] status. These are local branches whose remote counterparts have been deleted.

Step 2: Analyze Worktrees

Run the following command to list all worktrees:

git worktree list

Identify any worktrees marked as "prunable" - these can be safely removed.

Step 3: Analyze Dependabot Branches

1. First, update remote references:

git fetch --prune

2. List all dependabot PRs and their status:

gh pr list --state all --limit 100 --json number,title,state,headRefName --jq '.[] | select(.headRefName | startswith("dependabot/")) | "PR #\(.number): \(.headRefName) - \(.state)"'

3. List current remote dependabot branches:

git branch -r | grep 'dependabot/'

Cross-reference to find dependabot branches with CLOSED or MERGED PRs that still have remote branches.

Step 4: Analyze Other Stale Branches

List all local and remote branches to identify any other stale branches:

git branch
git branch -r

Step 5: Provide Summary Report

Create a comprehensive summary report with:

1. Gone Branches: List of local branches marked [gone] with worktree indicators
2. Prunable Worktrees: List of worktrees that can be pruned
3. Closed Dependabot PRs: List of dependabot branches with closed/merged PRs
4. Branch Inventory: Total count of local and remote branches

Format the report clearly with counts and specific branch names.

End with: "Run /git-tools:cleanup-git to perform the cleanup operations."

Important Notes

• This command performs NO modifications
• All operations are read-only
• Use this to review what needs cleanup before running /git-tools:cleanup-git